These are squishy silicone dice in a full polyhedral set with sharp edges.
The bones inside are made of the same super squishy silicone as well so they have the same texture all the way through. They come with a free case to keep them clean and safe but can be washed with regular soap and water. 
The silicone is NOT food grade, do NOT put them in your mouth. NO CHEW!
**** the set for sale is discounted due to a flawed d6.  Chipped corner is shown in the video. The rest of the set is fine***